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9 Cards in this Set

Is the taste, touch, sound, smell, or look of an object. It is the information that is carried to our CNS

Perception

the process of interpreting these sensations into meaningful characteristics

Rods

Receptor cells in teh retina, located mainly around the sides, that transduce light energy into neural messages; these visual receptors are highly sensitive and are active in dim light

Cones

Receptor cells in the central portion of the retina that transduce light energy into neural messages; they operate best when light levels are high, and they are primarily responsible for the ability to sense color

Trichromatic theory

Theory of color vision proposing that color information is extracted by comparing the relative activations of three different types of cone receptors

Opponent process theory

Theory of color vision proposing that cells in the visual pathway increase their activation levels to one color and decrease their activation levels to another color- for example, increasing to red and decreasing to green

Top down processing

Processing that is controlled by one's beliefs and expectations about how the world is organized

Bottom Up

Processing that is controlled by the physical message delivered to the senses

Gestalt principles of organization

The organizing principles of perception that include the laws of proximity, similarity, closure, continuation, and common fate